Congressional Republicans are grappling with how to respond to senior Trump administration officials’ use of a Signal group chat to discuss a military strike, with a key Senate committee requesting a watchdog probe of the matter as some in the GOP say there’s no need for further investigation.

The Pentagon's inspector general has unilaterally launched an investigation into Defense Secretary Pete Hegseth over Signalgate.

Defense Secretary Pete Hegseth’s use of the Signal group chat with other national security officials to discuss plans for airstrikes against Houthi rebels in Yemen will be investigated, the Pentagon’s acting inspector general announced Thursday.

The White House is saying the case of the Signal group chat is 'closed' as more lawmakers are calling for an investigation. The Morning Joe panel discusses.

White House press secretary Karoline Leavitt said Monday that national security adviser Mike Waltz continues to have President Donald Trump’s confidence and that it was done discussing the embarrassing matter of senior officials communicating about plans for an airstrike on a commercial messaging app.

White House press secretary Karoline Leavitt on Wednesday said that Elon Musk will help lead the investigation into the Signal chat leak.

Oklahoma Senator James Lankford is the latest senior Republican to endorse an independent probe into how President Donald Trump 's national security officials ended up discussing military plans with a journalist on the messaging app Signal.

The White House has asked Elon Musk and his team at the Department of Government Efficiency (DOGE) to help investigate how a journalist was included on a Signal chat with national security

The Defense Department inspector general's office said Thursday it will review Defense Secretary Pete Hegseth's use of commercial messaging apps like Signal to discuss sensitive details on planned U.S.